books.google.com - It is now fully recognized that the publication of Charles Darwin's Origin of Species in 1859 brought about a revolution in man's attitude toward life and his own place in the universe. This work is rightly regarded as one of the most important books ever published, and a knowledge of it should be part...http://books.google.com/books/about/On_the_Origin_of_Species.html?id=bPoaiu6ijJoC&q=existing&utm_source=gb-gplus-shareOn the Origin of Species